Yenza udaka olutsha oluqulathe ukugcinwa kakuhle kwamanzi:

Inkqubo ye-cement hydration yinkqubo ecothayo, efana nesamente ayinakuqhagamshelana namanzi ixesha elide, i-samente ayiyi kukwazi ukuqhubeka ne-hydration, ngaloo ndlela ichaphazela ukuphuhliswa kwamandla kamva. I-polymer modified mortar inamandla aphezulu kunexabiso eliqhelekileyo, isizathu kukubai-polymer powder enokuchithwa kwakhonakuphucula amandla okugcina amanzi, ukwenzela ukuba amandla kamva e-samente anyuke. Okwesibini, ukubunjwa kwesigaba esincinci se-polymer kumdaka, phucula amandla ebhondi.

Ukuphucula ukusebenza kolwakhiwo lodaka olutsha:

Emva kokongeza umgubo wepolymer owenziwe ngokutsha kudaka olomileyo oluxutyiweyo, ukusebenza kodaka kuphuculwe kakhulu, nto leyo ibangelwa ikakhulu ngenxa yezi zizathu zilandelayo: A. Xa udibanisa umgubo wepolymer nodaka, ngenxa yokuba amasuntswana omgubo wepolymer adispersible aqatywe yi-colloid yokukhusela enyibilikayo emanzini. , umaleko wokugquma unokuthintela ukuhlangana okungenakuguqulwa phakathi kwamasuntswana epolymer ukuze kubekho ifuthe lokuthambisa phakathi kwamasuntswana, iinqununu ze-polymer zinokuthi zihlakazwe ngokulinganayo kubunzima be-samente slurry, Ezi ngqungquthela ezihlakazekileyo, njengeebhola zebhola, zingenza ukuba izixhobo zodaka zihambe ngokwahlukileyo kwaye ziphucule ukusebenza kodaka. B. redispersible ipolymer powder ngokwayo iqulethe isiphumo esithile sokwenza umoya, i-dispersible polymer powder kwi-air induction effect kufuneka inike ukucinezeleka kodaka, ukuze udaka lube nokusebenza kakuhle kolwakhiwo. Ukongeza, ubukho bamaqamza amancinci bukwadlala indima eqengqelekayo kumxube ukuze kuphuculwe ukusebenza komxube.

I-polymer powder enokuchithwa kwakhonaukuphucula ukuguquguquka kunye nokumelana nokuqhekeka kodaka:

Emva kokoi-polymer powder enokuchithwa kwakhonaidityaniswe kudaka, umlinganiselo wokunyanzeliswa kodaka kunye ne-tensile ratio iphuculwe kakhulu, nto leyo ebonisa ukuba i-mortar brittleness iyancipha kakhulu, ukuqina kuphuculwe kakhulu, ukwenzela ukuba ukuxhathisa kokuqhekeka kodaka kuphuculwe.i-polymer powder enokuchithwa kwakhonakwifilimu yodaka, kungekuphela nje ukugcwalisa iintsilelo kunye neepores kwilitye lesamente, kodwa nakwiimveliso ze-cementhydration kunye negluing edibeneyo ukwenza i-polymer interpenetrating network, kuba imodyuli e-elastiki yefilimu yepolymer isezantsi kunodaka, ngoko ke ukonakala kodaka. iyancipha. Ukuguquguquka kodaka kwandisa umda omkhulu wokuguqulwa kodaka xa wonakalisiwe, kwaye amandla afunwa sisiphene kunye nokusabalalisa kwe-micro-crack afunnwe kumlinganiselo omkhulu, ukuze udaka lukwazi ukuthwala uxinzelelo olukhulu ngaphambi kokungaphumeleli. Ukongezelela, ifilimu ye-polymer iqulethe i-self-stretching mechanism, kwaye ifilimu ye-polymer yenza i-skeleton eqinile kwi-samente ye-hydrated mortar, equlethe impembelelo edibeneyo ehambayo, ukuqinisekisa ukuqina kunye nokuqina kwe-skeleton eqinile. Kukho ama-pores ebusweni befilimu ye-polymer eyenziwe phezu kweengqungquthela zodaka, kwaye i-pores izaliswe ngodaka, okunciphisa uxinzelelo loxinzelelo kwaye luvelise ukuphumla ngaphandle komonakalo phantsi kwesenzo samandla angaphandle. Ubukho bokuguquguquka okuphezulu kunye ne-elasticity ephezulu yendawo ye-polymer ikwaphucula ukuguquguquka kunye nokuqina kodaka.